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authorsanine <sanine.not@pm.me>2023-01-03 23:31:48 -0600
committersanine <sanine.not@pm.me>2023-01-03 23:31:48 -0600
commit13a7c902c051fa8da1e476687c17bb5431d258e1 (patch)
treeec75993aba0b8264f0dffd03eee2191020b206be /src/transform/transform.c
parente68e6d4e433fe42a0c6df18b2f2d7990b91b7cd6 (diff)
add kai_expand_array
Diffstat (limited to 'src/transform/transform.c')
-rw-r--r--src/transform/transform.c170
1 files changed, 0 insertions, 170 deletions
diff --git a/src/transform/transform.c b/src/transform/transform.c
deleted file mode 100644
index b0f6dc9..0000000
--- a/src/transform/transform.c
+++ /dev/null
@@ -1,170 +0,0 @@
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include <kalmia.h>
-#include <ezxml.h>
-#include "transform.h"
-
-
-#define TWO_PI 6.2831853071796f
-
-
-int kai_identity(ka_matrix_t *m)
-{
- memset(*m, 0, sizeof(ka_matrix_t));
- (*m)[0] = 1.0f;
- (*m)[5] = 1.0f;
- (*m)[10] = 1.0f;
- (*m)[15] = 1.0f;
-
- return 0;
-}
-
-
-int kai_multiply(ka_matrix_t *dest, ka_matrix_t A, ka_matrix_t B)
-{
- ka_matrix_t C;
- memset(C, 0, sizeof(ka_matrix_t));
-
- int i, j, k;
- int a_ind, b_ind, c_ind;
- for (i=0; i<4; i++) {
- for (j=0; j<4; j++) {
- c_ind = (4*i) + j;
- for (k=0; k<4; k++) {
- a_ind = (4*i) + k;
- b_ind = (4*k) + j;
- C[c_ind] += A[a_ind] * B[b_ind];
- }
- }
- }
-
- memcpy(*dest, C, sizeof(ka_matrix_t));
- return 0;
-}
-
-
-int kai_parse_matrix(ka_matrix_t *m, ezxml_t tag)
-{
- if (strcmp("matrix", ezxml_name(tag)) != 0)
- return -1;
-
- char *str = ezxml_txt(tag);
- char *end;
- int i;
- for (i=0; i<16; i++) {
- (*m)[i] = strtod(str, &end);
- str = end;
- }
-
- return 0;
-}
-
-
-int kai_parse_rotate(ka_matrix_t *m, ezxml_t tag)
-{
- if (strcmp("rotate", ezxml_name(tag)) != 0)
- return -1;
-
- char *str = ezxml_txt(tag);
- char *end;
- int i;
- double rot[4];
- for (i=0; i<4; i++) {
- rot[i] = strtod(str, &end);
- str = end;
- }
-
- double x, y, z, angle;
- x = rot[0];
- y = rot[1];
- z = rot[2];
- angle = rot[3];
-
- /* normalize length */
- double axis_len = (x*x) + (y*y) + (z*z);
- axis_len = sqrt(axis_len);
- x /= axis_len;
- y /= axis_len;
- z /= axis_len;
-
- /* convert angle to radians */
- angle *= TWO_PI / 360;
-
- /* compute rotation matrix entries */
- double co = cos(angle);
- double unco = 1 - co;
- double si = sin(angle);
-
- (*m)[0] = (x*x*unco) + co;
- (*m)[1] = (x*y*unco) - (z*si);
- (*m)[2] = (x*z*unco) + (y*si);
- (*m)[3] = 0.0f;
- (*m)[4] = (y*x*unco) + (z*si);
- (*m)[5] = (y*y*unco) + co;
- (*m)[6] = (y*z*unco) - (x*si);
- (*m)[7] = 0.0f;
- (*m)[8] = (z*x*unco) - (y*si);
- (*m)[9] = (z*y*unco) + (x*si);
- (*m)[10] = (z*z*unco) + co;
- (*m)[11] = 0.0f;
- (*m)[12] = 0.0f;
- (*m)[13] = 0.0f;
- (*m)[14] = 0.0f;
- (*m)[15] = 1.0f;
-
- return 0;
-}
-
-
-int kai_parse_scale(ka_matrix_t *m, ezxml_t tag)
-{
- if (strcmp("scale", ezxml_name(tag)) != 0)
- return -1;
-
- char *str = ezxml_txt(tag);
- char *end;
- int i;
- double scale[3];
- for (i=0; i<3; i++) {
- scale[i] = strtod(str, &end);
- str = end;
- }
-
- memset(*m, 0, 16*sizeof(double));
- (*m)[0] = scale[0];
- (*m)[5] = scale[1];
- (*m)[10] = scale[2];
- (*m)[15] = 1.0f;
-
- return 0;
-}
-
-
-int kai_parse_translate(ka_matrix_t *m, ezxml_t tag)
-{
- if (strcmp("translate", ezxml_name(tag)) != 0)
- return -1;
-
- char *str = ezxml_txt(tag);
- char *end;
- int i;
- double move[3];
- for (i=0; i<3; i++) {
- move[i] = strtod(str, &end);
- str = end;
- }
-
- memset(*m, 0, sizeof(ka_matrix_t));
-
- (*m)[0] = 1.0f;
- (*m)[3] = move[0];
- (*m)[5] = 1.0f;
- (*m)[7] = move[1];
- (*m)[10] = 1.0f;
- (*m)[11] = move[2];
- (*m)[15] = 1.0f;
-
- return 0;
-}